I just bought a new 60lb Moxie and it was originally a Strother reps show bow I guess is what it would be called. I love the bow but I just Chronoed it and here is what I got

29in draw
400gr arrow
24gr on string
60lb draw (haven't checked max)

And I am getting consistently 313-316fps!!

Seems impossible to me so I was wondering if y'all think it could be my chrono or because it was originally a reps bow it was one of the fastest bows in the litter?